The sound is somewhat messed up in my powermac 8500. The internal speaker works ok, however when I plug something into the line out port, I get nothing. Also, in the sound control panel, I cannot adjust the sound volume, and no input or output devices are listed. However I still get sounds out of the system speaker.

Running OS 9.2.2. Any idea what I can do to fix this :?: Specs in my sig.